Comber-cleaner carding device

Abstract

A carding device of the large rotating carding drum type including a comber-cleaner assembly particularly well suited for combing and cleaning universal flat cards is provided. The comber-cleaner including a worker roller and a stripper roller mounted for cooperation with the carding drum is disposed between a take-in roller and a card belt. The comber-cleaner assembly includes at least three curved plaque segments disposed over the worker roller for defining at least two channels for positioning at least two extractor blades for improved removal of residual short fibers and other impurities. A control strip deforms the web as it passes from the stripper roller to the worker roller.

What is claimed is: 
     
       1. In a carding device of the type having a large rotatable carding drum having a first direction of rotation and provided with means for carrying a fibrous web on the surface thereof, feed means for feeding the fibrous web onto the carding drum, a comber-cleaner assembly mounted for cooperating with the carding drum, the comber-cleaner assembly including stripper means for removing the web from the carding drum, worker means and plaque segment means disposed adjacent said worker means for defining a semicircular run wherein the web is opened, cleaned and combed, the improvement which comprises plaque segment means including at least three plaque segments disposed in a covering shell for defining at least two channels between said segments and at least two extractor blades disposed in said channels between adjacent plaque segments for removing impurities from the web. 
     
     
       2. The device of claim 1, further including evacuating means for removal of impurities removed from the web and said extractor blades disposed vertically over said removal means. 
     
     
       3. The device of claim 2, wherein at least one of said extractor blades is disposed on the upstream side of said removal means and at least one of the other of said extractor blades is disposed downstream from said removal means. 
     
     
       4. The device of claim 2, wherein said removal means is a vacuum device. 
     
     
       5. The device of claim 4, wherein said assembly includes three curved plaque segments and two extractor blades. 
     
     
       6. The device of claim 5, wherein said feed means includes a rotatably mounted take-in roller disposed adjacent to said carding drum for feeding a web to said drum and a feed-roller for feeding the web from a table to said take-in roller. 
     
     
       7. The device of claim 5, wherein said stripper means is a stripper roller formed with a plurality of teeth angularly oriented in a direction opposite the rotation of said stripper roller and said worker means includes a worker roller disposed tangent to said stripper roller and said carding drum, said worker roller formed with a plurality of teeth angularly disposed in the direction of rotation of said worker roller, said stripper roller and said worker roller mounted for rotation in a second direction opposite to the rotation of said carding drum. 
     
     
       8. The device of claim 7, further including a control strip disposed at the point of tangency between said stripper roller and said worker roller for deforming the web as the web passes from the stripper roller to the worker roller. 
     
     
       9. The device of claim 7, wherein said plaque segments include a plurality of teeth angularly disposed in a direction opposite to the rotation of said worker roller for opening and combing the web as the web is carried through said semicircular run by said worker roller.